Berkshire Hathaway, the massive enterprise with its hand in various industries, also owns a sizable public equities portfolio. Directed by legendary investor Warren Buffett, the conglomerate has done a remarkable job compounding capital.

Questions about succession will be front and center when shareholders convene May 3 in Omaha for the company’s annual meeting.

Berkshire Hathaway 's ( BRK.A -0.33%) ( BRK.B -0.11%) portfolio has changed significantly over the past year, even though billionaire investor and company CEO Warren Buffett hasn't exactly been loading the company's portfolio with stocks. Investors have been taking note of Buffett's seemingly conservative investment strategy and what it might mean.